6*15/5*12=1*3/1*2=3/2=1Ц1/2
11*9/15*22=1*3/5*2=3/10
18*21/14*36=1*3/2*2=3/4
45*17/17*35=9*1/1*7=9/7=1Ц2/7
81*12/24*45=9*1/2*5=9/10
56*16/48*49=8*1/3*7=8/21
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6*15/5*12=1*3/1*2=3/2=1Ц1/2
11*9/15*22=1*3/5*2=3/10
18*21/14*36=1*3/2*2=3/4
45*17/17*35=9*1/1*7=9/7=1Ц2/7
81*12/24*45=9*1/2*5=9/10
56*16/48*49=8*1/3*7=8/21